91 GMC IFS ?

[old school truck dude]

Went to go  down the road the other day and the right front wheel locked up and would not turn at all, was tryin to make a flat spot on the tire. Stopped, got out and looked, didnt see nothin so tried to go again, would not turn. Get back in truck and put in reverse and back up, makes a poppin sound and the wheel would now turn. Went on to work, 7 miles. Go to leave work and get the same deal, but made it home. Noticed it was occasionally pullin to the right but not just all the time. Raised it up and looked at caliper and its free, wheel bearing appears to have slight amount of slop, but rotor would spin freely both forward and backward. Put back together after makin sure caliper wasnt rusted and/or froze and tried it, same deal, it locks up tight and wont turn. Would this be the wheel bearing or the front differential? The wheel bearing is $100, so I dont want to buy it if its the differential.. Any ideas? 

[hillbillydeluxe007]

i would take the half shaft out and see what it dose but dont drive on it for to long that nut help hold the bearing on... and did u take the diff plat off and look at the ring gear and all the other fun stuff in there

[old school truck dude]

I have not been in there yet, I reckon I'm gonna have to pull the cover and see.. Seems like if it was the wheel bearing it would do it all the time..? Its parked, puttin it in the garage in a little bit. Dang, its my tow rig and I got a truck to go get

[old school truck dude]

And its definitely the wheel bearing. Is the steering knuckle gonna probably end up bein bad as well? That bearing is majorly shot.

[RIP_K52007]

whatever you do dont drive without the c/v axle in there unless you like going down the road on 3 tires and a control arm.

steering knuckle shoud be fine but while you got the wheel bearing out check your ball joints

[old school truck dude]

Can I just put a fat girl in the left rear corner of the box and be ok?? 

[RIP_K52007]

Can I just put a fat girl in the left rear corner of the box and be ok?? 

that might just work